Granted Patent
Utility
US 6,371,339 · App. 09/392,820
Liquid dispensing system with improved sealing augering screw and method for dispensing
Inventors:
Thomas White, William A. Cavallaro
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Sep 9, 1999
Inventors
Thomas White
William A. Cavallaro
Assignee (at issue)
Speedline Technologies, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.